Want to know if Cas9 is active in your cells? Cellecta’s CRISPRtest™ method allows you to assess the level of Cas9 activity in your cell line using two pre-mixed lentiviral-packaged vectors,
Transduction of CRISPRtest virus into cells will result in a mixture of cells expressing GFP and cells expressing RFP. Upon cell growth in the presence of active Cas9, the ratio of GFP cells: RFP cells will decrease proportionally to Cas9 activity.
The CRISPRtest Functional Cas9 Activity Kit, currently for human cell lines only, is an easy-to-use, highly sensitive kit for measuring functional Cas9 activity in almost any human cell line.